la pollution before and after


Did Los Angeles have air pollution control?

The city did have Air Pollution Control, an early pollution monitoring group. 9th November 1961: Members of the 'Air Pollution Control' measure the concentration of atmospheric pollutants in Los Angeles, California. Continuing into the 1960s, parts of Los Angeles were getting 200 smoggy days each year.

How did smog improve in Los Angeles in 1975?

Haze in the Santa Monica mountains near the west edge of Los Angeles in 1975. But the air quality in Los Angeles had improved, and that was largely due to the Clean Air Act, which helped lower emissions from cars and industry. Smog over LA monitored by NASA scientists and air pollution center in 1972.

Did ozone pollution hit a high level in Los Angeles?

(Robert Gauthier / Los Angeles Times) Lung-damaging ozone pollution in Los Angeles reached its highest levels in a generation and set records in other parts of Southern California during the blistering Labor Day weekend heat wave, air quality readings show.

Why does La have poor air quality?

As with any major metropolitan city, emissions from vehicles and manufacturers contribute to poor air quality. The large population of 4 million in LA, with another 6 million in the surrounding county, significantly contributes to its ‘non-attainment’ air quality status because of heavy vehicular emissions and traffic congestion.

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